Madison de Rozario snatched a thrilling sprint finish to become the 2023 TCS London Marathon champion.
The Australian is the third different winner in three races in series XV of the Abbott World Marathon Majors, teeing up an enthralling fall season when the women's title will be decided.
De Rozario edged out Manuela Schär to claim her first London win since 2018 and her first Major since New York City in 2021.
The whole race saw the Paralympic champion locked in a four-way battle with Schär, Susannah Scaroni, who won Boston on Monday, and last year's London champion Catherine Debrunner.
The quartet shared the burden of pushing on the front, with Schär's attempted break past half way proving unsuccessful, as she settled back into the group.
As they rounded the final bend with the finish on The Mall coming into view, it was De Rozario who played her hand, holding off Schär as they battle to the line on a cool, wet morning in the UK capital.
The series now pauses until the BMW BERLIN-MARATHON in September and, while the women's competition is finely balanced, the same cannot be said of the men's series.
Marcel Hug won by over five minutes to continue his dominance of the sport. It's his third straight London win, which equal's David Weir's streak in the event, and his third win of the series. The Swiss also lowered his own course record, clocking 1:23:44.
"It feels great and I am enjoying every moment of racing," said Hug. "Everything is going so well. To win in London means so much to me. It's such a great atmosphere, with so many spectators on the course. They give so much energy."